LinkQuest
has provided the TrackLink 1500MA system along with 4
transponders to Connolly-Pacific's underwater construction
project in the coastal Pacific Ocean near Newport Beach,
California. Connolly-Pacific surveyed the 1 mile long
sewage pipeline owned by Orange County, California and laid
tens of thousands of tons of rocks along side the pipeline to
secure its positions. It is one of the largest
underwater construction project in the west coast of the
United States in the year 2002. LinkQuest's TrackLink
system provided all acoustic positioning functions such as
diver tracking, ROV tracking and tracking of various
underwater structures during the period of more than two
months.

The
TrackLink 1500MA system was used in a two-day diver survey to
track the positions of the pipeline accurately in June,
2002. Combined with the result of the multi-beam echo
sounder survey conducted in the previous week, Connlly-Pacific
proceeded with the construction project confidently with full
knowledge of the present positions of the pipeline constructed
more than 20 years ago.

The
TrackLink transponder was installed on the steel sled.
The steel sled was used to cover the pipeline when the rocks
were thrown into the ocean from the construction barge.
Tracking the sled accurately and reliably is critical to the
success of the project. If positions obtained from the
TrackLink system is wrong, the rocks may strike the sewage
pipeline causing major damage and sewage spill to nearby
beaches. The TrackLink system has performed impeccably
during the month long construction period and provided
reliable and consistent positions of the sled and other
underwater structures.

The
TrackLink system was also used to track a DOE Phantom HD2+2
ROV during the construction. This ROV was used to
inspect the construction side near the construction barges.